\begin{table}[htbp]\centering
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\caption{Inverse Hyperbolic Sine Beam table\label{ihs\_B}}
\begin{tabular}{l*{8}{c}}
\hline\hline
            &\multicolumn{1}{c}{(1)}&\multicolumn{1}{c}{(2)}&\multicolumn{1}{c}{(3)}&\multicolumn{1}{c}{(4)}&\multicolumn{1}{c}{(5)}&\multicolumn{1}{c}{(6)}&\multicolumn{1}{c}{(7)}&\multicolumn{1}{c}{(8)}\\
            &\multicolumn{1}{c}{ihs\_fe2\_B6}&\multicolumn{1}{c}{ihs\_fe2\_B2}&\multicolumn{1}{c}{ihs\_fe2\_B1}&\multicolumn{1}{c}{ihs\_fe2\_B3}&\multicolumn{1}{c}{ihs\_fe2\_B4}&\multicolumn{1}{c}{ihs\_fe2\_B5}&\multicolumn{1}{c}{ihs\_fe2\_B7}&\multicolumn{1}{c}{ihs\_fe2\_B8}\\
\hline
ihs\_L3\_sd   &       0.282\sym{***}&       0.296\sym{***}&       0.299\sym{***}&       0.299\sym{***}&       0.288\sym{***}&       0.289\sym{***}&       0.289\sym{***}&       0.310\sym{***}\\
            &     (0.080)         &     (0.077)         &     (0.078)         &     (0.077)         &     (0.078)         &     (0.079)         &     (0.077)         &     (0.077)         \\
ihs\_B6\_L3\_sd&       0.181\sym{***}&                     &                     &                     &                     &                     &                     &                     \\
            &     (0.059)         &                     &                     &                     &                     &                     &                     &                     \\
ihs\_B2\_L3\_sd&                     &       0.107\sym{*}  &                     &                     &                     &                     &                     &                     \\
            &                     &     (0.055)         &                     &                     &                     &                     &                     &                     \\
ihs\_B1\_L3\_sd&                     &                     &       0.076\sym{**} &                     &                     &                     &                     &                     \\
            &                     &                     &     (0.034)         &                     &                     &                     &                     &                     \\
ihs\_B3\_L3\_sd&                     &                     &                     &       0.127\sym{**} &                     &                     &                     &                     \\
            &                     &                     &                     &     (0.051)         &                     &                     &                     &                     \\
ihs\_B4\_L3\_sd&                     &                     &                     &                     &       0.136\sym{**} &                     &                     &                     \\
            &                     &                     &                     &                     &     (0.055)         &                     &                     &                     \\
ihs\_B5\_L3\_sd&                     &                     &                     &                     &                     &       0.136\sym{***}&                     &                     \\
            &                     &                     &                     &                     &                     &     (0.045)         &                     &                     \\
ihs\_B7\_L3\_sd&                     &                     &                     &                     &                     &                     &       0.122\sym{***}&                     \\
            &                     &                     &                     &                     &                     &                     &     (0.045)         &                     \\
ihs\_B8\_L3\_sd&                     &                     &                     &                     &                     &                     &                     &       0.093         \\
            &                     &                     &                     &                     &                     &                     &                     &     (0.080)         \\
\hline
r2          &       0.890         &       0.885         &       0.884         &       0.887         &       0.887         &       0.888         &       0.885         &       0.883         \\
\hline\hline
\multicolumn{9}{l}{\footnotesize Standard errors in parentheses}\\
\multicolumn{9}{l}{\footnotesize \sym{*} \(p<0.10\), \sym{**} \(p<.05\), \sym{***} \(p<.01\)}\\
\end{tabular}
\end{table}
